Cash, Cash Equivalents and Available for Sale Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 109,516
Gross Unrealized Gains	5
Gross Unrealized Losses	(2)
Fair Value	109,519	$ 143,674
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	27,123
Gross Unrealized Gains	4
Gross Unrealized Losses	0
Fair Value	27,127
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	71,923
Gross Unrealized Gains	1
Gross Unrealized Losses	(2)
Fair Value	71,922
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,470
Gross Unrealized Gains	0
Gross Unrealized Losses	0
Fair Value	$ 10,470

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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